Dynamic master data management

ABSTRACT

A method includes, in a master data management system, identifying a profile including a plurality of master data attributes and receiving a persistent modification request for the profile. The persistent modification request affects one or more of the master data attributes. The method further includes, for each affected attribute, either: (i) identifying a preexisting master record associated with preexisting ownership information; or (ii) determining that no preexisting master record exists. The method further includes, for each affected attribute: (i) responsive to determining that no preexisting master record exists, adding a new master data attribute and associated new ownership information to the profile, based on the persistent modification request; (ii) responsive to identifying the preexisting master record, selectively permitting or denying the persistent modification request; and (iii) responsive to permitting the persistent modification request, updating the preexisting master record, based on the persistent modification request.

BACKGROUND

The present invention relates generally to the field of master datamanagement, and more particularly to managing ownership of attributes inmaster data management systems.

Master data management (MDM) systems provide a platform for ensuringconsistency of data across multiple systems and databases deployed by anenterprise user. For example, a bank may have multiple source systemsfor interacting with customers in different ways, such as depositaccounts, investment accounts, loans, payment card management, etc., allof which may need to interact with the customer's contact information.The bank may deploy an MDM system to ensure that the customer contactinformation is managed consistently.

Generally, MDM systems may be characterized as physical, virtual, orhybrid. In a virtual MDM implementation, data remains fragmented acrossvarious source systems in a distributed manner with a central indexingservice. By contrast, in a physical MDM implementation, master data isstored and/or created in a centralized system, which is accessed by orpushed to the various source systems.

Hybrid MDM implementations blend the virtual and physical styles ofmanagement by allowing source systems to manage of some attributes andthe central management of other attributes. In hybrid MDMimplementations, several capabilities are exposed that allow forseamless movement of master data entities between their virtual andphysical representations. Enterprises continue to face challenges inmanaging the ownership of various attributes in MDM systems,particularly hybrid MDM systems.

SUMMARY

A computer-implemented method includes, in a master data managementsystem, identifying a profile including a plurality of master dataattributes and receiving a persistent modification request directed tothe profile. The persistent modification request affects one or moreaffected attributes of the plurality of master data attributes. Thecomputer-implemented method further includes, for each affectedattribute, either: (i) identifying a preexisting master recordassociated with preexisting ownership information for the affectedattribute; or (ii) determining that no preexisting master record existsfor the affected attribute. The computer-implemented method furtherincludes, for each affected attribute: (i) responsive to determiningthat no preexisting master record exists for the affected attribute,adding a new master data attribute and associated new ownershipinformation to the profile, based on the persistent modificationrequest; (ii) responsive to identifying the preexisting master recordfor the affected attribute, selectively permitting or denying thepersistent modification request as to the affected attribute; and (iii)responsive to permitting the persistent modification request as to theaffected attribute, updating the preexisting master record for theaffected attribute, based on the persistent modification request. Acorresponding computer program product and computer system are alsodisclosed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is block diagram depicting an exemplary operational environmentincorporating various logical components for at least one embodiment ofthe present invention.

FIG. 2 is a flowchart diagram depicting various operational steps for anMDM request program, in accordance with at least one embodiment of thepresent invention.

FIG. 3 is a block diagram of various components of a computer systemsuitable for performing various methods, in accordance with at least oneembodiment of the present invention.

DETAILED DESCRIPTION

Referring now to the invention in more detail, FIG. 1 is a block diagramillustrating an exemplary operational environment incorporating variouslogical components for at least one embodiment of the present invention.Broadly, an enterprise deploys a hybrid master data management (MDM)system 100 for managing data consistency across multiple source systems114. Source systems may include any data management system deployed bythe enterprise, for example, a bank deploying MDM may operate differentsource systems for checking and savings accounts, investment accounts,loan accounts, payment cards, etc. The hybrid MDM system 100 may beunderstood as deployed on any standalone or distributed computer orcomputing environment, such as the exemplary computer of FIG. 3. Thehybrid MDM system 100 maintains a profile 102, which may include variousmaster data attributes 107 including supplemental attributes 104 andnon-supplemental attributes 106, and corresponding ownership information108. The profile 102 may be understood to refer to a collection ofattributes, and not any specific system, hardware unit, or user.Ownership of any master data attribute 107, in the context of thepresent invention, means the right to modify the value of the attribute,and the ownership information 108 stores whether each master dataattribute 107 is centrally or virtually (i.e. source system) owned. Invarious embodiments, the non-supplemental attributes 106 may beunderstood as owned by various source systems 114, while supplementalattributes 104 may be understood as centrally owned and thus“supplemental” to the data maintained by the source systems 114.

In various embodiments of hybrid MDM, hybrid MDM is deployed by anenterprise as part of a transition strategy from virtual MDM to physicalMDM wherein disparate preexisting source systems 114 are harmonized viaMDM, but not all are immediately upgraded to take advantage of profile102 and its central control of data. To support this, the hybrid MDMsystem 100 is accessible at least through a physical applicationprogramming interface (API) 110 and a virtual application programminginterface (API) 120. Embodiments of the present invention may exist asan MDM request program 101, which may receive a persistent modificationrequest 112 via the physical API 110. Various source systems 114 mayaccess the master data attributes 107 via the physical API 110 bysending a persistent modification request 112 to change various affectedattributes 116 or directly via the virtual API 120, with theunderstanding that, as the enterprise continues to develop, update, orreplace its source systems 114 over time, the virtual API 120 will bedisfavored and the physical API 110 preferred, until all systems use thephysical API 110, and the system may be described as physical MDM.

The inventors have observed and/or recognized that existingimplementations of hybrid MDM require the ownership information 108 tobe defined in. The definitions typically include all of the master dataattributes 107. For the externally managed non-supplemental attributes106, this includes defining survivorship rules for when various sourcesystems 114 present updates through the virtual API 120. For thecentrally managed supplemental attributes 104, the definition includeswhich supplemental attributes 104 will exist and which source systems114 will be permitted to change them. The inventors have observed and/orrecognized that allowing the supplemental attributes 104 to bedynamically created and owned would reduce the design-time burden on theenterprise MDM user. While various embodiments of the present inventionmay address this and other problems and/or offer this or otheradvantages, it will be understood that the presence of such benefits arenot essential to the practice of the invention, and accordingly, theinvention is not to be understood as limited with respect to any problemrecognized or advantaged discovered by the inventors.

Referring now to FIG. 2, FIG. 2 is a flowchart diagram depicting variousoperational steps for the MDM request program 101, in accordance withvarious embodiments of the present invention. At step 200, the MDMrequest program identifies a profile 102. In accordance with at leastone MDM model (specifically, a hybrid MDM model, though physical andvirtual MDM models may be adapted for the present invention as well),the profile 102 may be administered, updated, and/or accessed by the MDMrequest program 101 via the physical API 110. At step 202, the MDMrequest program 101 receives the persistent modification request 112from one of the source systems 114. The persistent modification request112 is directed to the profile 102, which includes a plurality of masterdata attributes 107. The persistent modification request 112 may includeany type of insert, update, delete, or other database modificationstatement or action that, if permitted, would persistently modify thecontents of the profile 102. The persistent modification request 112 mayaffect one or more master data attributes 107; those that are affectedare termed “one or more affected attributes”.

At decision block 204, the MDM request program 101 iterates over theaffected attributes affected by the persistent modification request 112.For each affected attribute of the one or more affected attributes, atdecision block 206, the MDM request program 101 determines whether thereis a preexisting master record for the affected attribute. A preexistingmaster record is a previously set value for the variable designated byaffected attribute in the profile 102. Specifically, the MDM requestprogram 101 either identifies a preexisting master record associatedwith preexisting ownership information for the affected attribute ordetermines that no preexisting master record exists.

Referring still to FIG. 2, if there is no preexisting master record forthe affected attribute (decision block 206, NO branch), then, responsiveto determining that no preexisting master record exists, the MDM requestprogram 101 at step 208 adds a new master data attribute 107 and newownership information to the profile 102, based on the persistentmodification request 112. Specifically, the persistent modificationrequest 112 includes the values of the affected attributes 116 and theassociated source ownership data from which the new master dataattribute is created. In the hybrid MDM system 100, the ownership datamay specify, for each master data attribute 107, ownership selected fromthe group consisting of (a) virtual ownership; and (b) centralownership. When adding a new master data attribute, central ownershipmay be intended in the interest of migrating the MDM system away fromthe virtual API 120 and toward the physical API 110.

Referring still to FIG. 2, if there is a preexisting master record forthe affected attribute (decision block 206, YES branch), then, atdecision block 212, responsive to identifying the preexisting masterrecord for the affected attribute, the MDM request program 101selectively permits or denies the persistent modification request as tothe affected attribute. Permitting or denying the persistentmodification request 112 may be based on various rules, including theparticular source system 114, the ownership information 108, and otherbases. In some embodiments, selectively permitting or denying thepersistent modification request 112 as to the affected attributeincludes denying the persistent modification request 112 as to theaffected attribute, if the preexisting ownership information indicatesvirtual ownership of the affected attribute and the persistentmodification request 112 is received via the physical applicationprogramming interface 110. In such embodiments, changes to supplementalattributes 104 may be generally allowed, or selectively allowed subjectto enterprise-specific business rules. At step 214, responsive topermitting the persistent modification request 112 as to the affectedattribute, the MDM request program 101 updates the preexisting masterrecord for the affected attribute, based on the persistent modificationrequest 112.

In some embodiments, the MDM request program 101 may detect a conflictbetween the persistent modification request 112 and one or more masterrecords for the affected attributes and resolve the conflict by astewardship event. A conflict condition may arise when a source system114 attempts to create a new supplemental attribute 104 where anon-supplemental attribute 106 already exists, or where an update to anexisting supplemental attribute 104 is suspect due to the application ofone or more-entity specific business rules to the persistentmodification request 112. More formally, in such embodiments, the MDMrequest program 101 may, for each affected attribute of the one or moreaffected attributes 116, detect a conflict between the persistentmodification request 112 as to the affected attribute and any of theplurality of master data attributes 107 that has central ownership (bycontrast to the herein described steps, a conflict with a master dataattribute 107 that has virtual ownership may be simply denied). In suchembodiments, selectively permitting or denying the persistentmodification request 112 as to the affected attribute includesgenerating a stewardship event.

Generating a stewardship event may include at least one stewardshipaction selected from the group consisting of (a) sending a tasknotification to a stewardship entity; and (b) reconciling the conflictaccording to one or more business rules. A stewardship entity may be acomputer service, business unit, or one or more individual users, orsome combination thereof that is authorized to modify the content ofsupplemental attributes 104 within the profile 102. The stewardshipentity may be tasked with responding, investigating, and/or resolvingthe conflict. Alternatively, some embodiments may incorporate automaticconflict resolution according to business rules. For example, a bankentity user may treat a changed customer address as a conflict, if itcomes from a third party source such as a credit report, but allow it ifit comes from a privileged source, such as the customer updating his orher address via a web interface.

In some embodiments, the MDM system 100 may implement a transactionsystem supports multi-step operations that can be rolled back in case ofa failure at any step, or continued until all steps completesuccessfully, and then committed. The persistent modification request112 may be part of a transaction on the MDM system 100 as one step ofseveral steps that may comprise the transaction. Steps of thetransaction may include persistent modification requests such as thepersistent modification request 112, but may also include non-modifyingdata access and/or query operations directed to the profile 102 oroperations that are unrelated to the profile 102. In such embodiments,responsive to allowing the persistent modification request 112 for allof the one or more affected attributes, the MDM request program 101 maycontinue with the transaction by proceeding to the next step orcommitting the transaction, if all steps are completed. Responsive todenying the persistent modification request 112 for any of the one ormore affected attributes, the MDM request program 101 may roll backand/or abort the transaction.

FIG. 3 is a block diagram depicting components of a computer 300suitable for executing the MDM request program 101. FIG. 3 displays thecomputer 300, the one or more processor(s) 304 (including one or morecomputer processors), the communications fabric 302, the memory 306, theRAM, the cache 316, the persistent storage 308, the communications unit310, the I/O interfaces 312, the display 320, and the external devices318. It should be appreciated that FIG. 3 provides only an illustrationof one embodiment and does not imply any limitations with regard to theenvironments in which different embodiments may be implemented. Manymodifications to the depicted environment may be made.

As depicted, the computer 300 operates over a communications fabric 302,which provides communications between the cache 316, the computerprocessor(s) 304, the memory 306, the persistent storage 308, thecommunications unit 310, and the input/output (I/O) interface(s) 312.The communications fabric 302 may be implemented with any architecturesuitable for passing data and/or control information between theprocessors 304 (e.g., microprocessors, communications processors, andnetwork processors, etc.), the memory 306, the external devices 318, andany other hardware components within a system. For example, thecommunications fabric 302 may be implemented with one or more buses or acrossbar switch.

The memory 306 and persistent storage 308 are computer readable storagemedia. In the depicted embodiment, the memory 306 includes a randomaccess memory (RAM). In general, the memory 306 may include any suitablevolatile or non-volatile implementations of one or more computerreadable storage media. The cache 316 is a fast memory that enhances theperformance of computer processor(s) 304 by holding recently accesseddata, and data near accessed data, from memory 306.

Program instructions for the MDM request program 101 may be stored inthe persistent storage 308 or in memory 306, or more generally, anycomputer readable storage media, for execution by one or more of therespective computer processors 304 via the cache 316. The persistentstorage 308 may include a magnetic hard disk drive. Alternatively, or inaddition to a magnetic hard disk drive, the persistent storage 308 mayinclude, a solid state hard disk drive, a semiconductor storage device,read-only memory (ROM), electronically erasable programmable read-onlymemory (EEPROM), flash memory, or any other computer readable storagemedia that is capable of storing program instructions or digitalinformation.

The media used by the persistent storage 308 may also be removable. Forexample, a removable hard drive may be used for persistent storage 308.Other examples include optical and magnetic disks, thumb drives, andsmart cards that are inserted into a drive for transfer onto anothercomputer readable storage medium that is also part of the persistentstorage 308.

The communications unit 310, in these examples, provides forcommunications with other data processing systems or devices. In theseexamples, the communications unit 310 may include one or more networkinterface cards. The communications unit 310 may provide communicationsthrough the use of either or both physical and wireless communicationslinks. MDM request program may be downloaded to the persistent storage308 through the communications unit 310. In the context of someembodiments of the present invention, the source of the various inputdata may be physically remote to the computer 300 such that the inputdata may be received and the output similarly transmitted via thecommunications unit 310.

The I/O interface(s) 312 allows for input and output of data with otherdevices that may operate in conjunction with the computer 300. Forexample, the I/O interface 312 may provide a connection to the externaldevices 318, which may include a keyboard, keypad, a touch screen,and/or some other suitable input devices. External devices 318 may alsoinclude portable computer readable storage media, for example, thumbdrives, portable optical or magnetic disks, and memory cards. Softwareand data used to practice embodiments of the present invention may bestored on such portable computer readable storage media and may beloaded onto the persistent storage 308 via the I/O interface(s) 312. TheI/O interface(s) 312 may similarly connect to a display 320. The display320 provides a mechanism to display data to a user and may be, forexample, a computer monitor.

The programs described herein are identified based upon the applicationfor which they are implemented in a specific embodiment of theinvention. However, it should be appreciated that any particular programnomenclature herein is used merely for convenience, and thus theinvention should not be limited to use solely in any specificapplication identified and/or implied by such nomenclature.

The present invention may be a system, a method, and/or a computerprogram product at any possible technical detail level of integration.The computer program product may include a computer readable storagemedium (or media) having computer readable program instructions thereonfor causing a processor to carry out aspects of the present invention.

The computer readable storage medium can be a tangible device that canretain and store instructions for use by an instruction executiondevice. The computer readable storage medium may be, for example, but isnot limited to, an electronic storage device, a magnetic storage device,an optical storage device, an electromagnetic storage device, asemiconductor storage device, or any suitable combination of theforegoing. A non-exhaustive list of more specific examples of thecomputer readable storage medium includes the following: a portablecomputer diskette, a hard disk, a random access memory (RAM), aread-only memory (ROM), an erasable programmable read-only memory (EPROMor Flash memory), a static random access memory (SRAM), a portablecompact disc read-only memory (CD-ROM), a digital versatile disk (DVD),a memory stick, a floppy disk, a mechanically encoded device such aspunch-cards or raised structures in a groove having instructionsrecorded thereon, and any suitable combination of the foregoing. Acomputer readable storage medium, as used herein, is not to be construedas being transitory signals per se, such as radio waves or other freelypropagating electromagnetic waves, electromagnetic waves propagatingthrough a waveguide or other transmission media (e.g., light pulsespassing through a fiber-optic cable), or electrical signals transmittedthrough a wire.

Computer readable program instructions described herein can bedownloaded to respective computing/processing devices from a computerreadable storage medium or to an external computer or external storagedevice via a network, for example, the Internet, a local area network, awide area network and/or a wireless network. The network may comprisecopper transmission cables, optical transmission fibers, wirelesstransmission, routers, firewalls, switches, gateway computers and/oredge servers. A network adapter card or network interface in eachcomputing/processing device receives computer readable programinstructions from the network and forwards the computer readable programinstructions for storage in a computer readable storage medium withinthe respective computing/processing device.

Computer readable program instructions for carrying out operations ofthe present invention may be assembler instructions,instruction-set-architecture (ISA) instructions, machine instructions,machine dependent instructions, microcode, firmware instructions,state-setting data, configuration data for integrated circuitry, oreither source code or object code written in any combination of one ormore programming languages, including an object oriented programminglanguage such as Smalltalk, C++, or the like, and procedural programminglanguages, such as the “C” programming language or similar programminglanguages. The computer readable program instructions may executeentirely on the user's computer, partly on the user's computer, as astand-alone software package, partly on the user's computer and partlyon a remote computer or entirely on the remote computer or server. Inthe latter scenario, the remote computer may be connected to the user'scomputer through any type of network, including a local area network(LAN) or a wide area network (WAN), or the connection may be made to anexternal computer (for example, through the Internet using an InternetService Provider). In some embodiments, electronic circuitry including,for example, programmable logic circuitry, field-programmable gatearrays (FPGA), or programmable logic arrays (PLA) may execute thecomputer readable program instructions by utilizing state information ofthe computer readable program instructions to personalize the electroniccircuitry, in order to perform aspects of the present invention.

Aspects of the present invention are described herein with reference toflowchart illustrations and/or block diagrams of methods, apparatus(systems), and computer program products according to embodiments of theinvention. It will be understood that each block of the flowchartillustrations and/or block diagrams, and combinations of blocks in theflowchart illustrations and/or block diagrams, can be implemented bycomputer readable program instructions.

These computer readable program instructions may be provided to aprocessor of a general purpose computer, special purpose computer, orother programmable data processing apparatus to produce a machine, suchthat the instructions, which execute via the processor of the computeror other programmable data processing apparatus, create means forimplementing the functions/acts specified in the flowchart and/or blockdiagram block or blocks. These computer readable program instructionsmay also be stored in a computer readable storage medium that can directa computer, a programmable data processing apparatus, and/or otherdevices to function in a particular manner, such that the computerreadable storage medium having instructions stored therein comprises anarticle of manufacture including instructions which implement aspects ofthe function/act specified in the flowchart and/or block diagram blockor blocks.

The computer readable program instructions may also be loaded onto acomputer, other programmable data processing apparatus, or other deviceto cause a series of operational steps to be performed on the computer,other programmable apparatus or other device to produce a computerimplemented process, such that the instructions which execute on thecomputer, other programmable apparatus, or other device implement thefunctions/acts specified in the flowchart and/or block diagram block orblocks.

The flowchart and block diagrams in the Figures illustrate thearchitecture, functionality, and operation of possible implementationsof systems, methods, and computer program products according to variousembodiments of the present invention. In this regard, each block in theflowchart or block diagrams may represent a module, segment, or portionof instructions, which comprises one or more executable instructions forimplementing the specified logical function(s). In some alternativeimplementations, the functions noted in the blocks may occur out of theorder noted in the Figures. For example, two blocks shown in successionmay, in fact, be executed substantially concurrently, or the blocks maysometimes be executed in the reverse order, depending upon thefunctionality involved. It will also be noted that each block of theblock diagrams and/or flowchart illustration, and combinations of blocksin the block diagrams and/or flowchart illustration, can be implementedby special purpose hardware-based systems that perform the specifiedfunctions or acts or carry out combinations of special purpose hardwareand computer instructions.

What is claimed is:
 1. A computer-implemented method comprising, in amaster data management system: identifying a profile, said profilecomprising a plurality of master data attributes; receiving a persistentmodification request directed to said profile, said persistentmodification request affecting one or more affected attributes; said oneor more affected attributes being of said plurality of master dataattributes; for each affected attribute of said one or more affectedattributes, either: identifying a preexisting master record for saidaffected attribute, said preexisting master record being associated withpreexisting ownership information for said affected attribute; ordetermining that no preexisting master record exists for said affectedattribute; for each affected attribute of said one or more affectedattributes: responsive to determining that no preexisting master recordexists for said affected attribute, adding a new master data attributeand associated new ownership information for said affected attribute tosaid profile, based on said persistent modification request; responsiveto identifying said preexisting master record for said affectedattribute, selectively permitting or denying said persistentmodification request as to said affected attribute; and responsive topermitting said persistent modification request as to said affectedattribute, updating said preexisting master record for said affectedattribute, based on said persistent modification request.
 2. Thecomputer-implemented method of claim 1, wherein: said master datamanagement system is accessible at least through a physical applicationprogramming interface and a virtual application programming interface;and said persistent modification request is received through saidphysical application programming interface.
 3. The computer-implementedmethod of claim 2, wherein: said preexisting ownership informationidentifies an ownership selected from the group consisting of: (a)virtual ownership; and (b) central ownership; selectively permitting ordenying said persistent modification request as to said affectedattribute comprises denying said persistent modification request as tosaid affected attribute, if said preexisting ownership informationindicates virtual ownership of said affected attribute and saidpersistent modification request is received via said physicalapplication programming interface.
 4. The computer-implemented method ofclaim 3, wherein said persistent modification request is received viasaid physical application programming interface.
 5. Thecomputer-implemented method of claim 3, further comprising: for eachaffected attribute of said one or more affected attributes, detecting aconflict between said persistent modification request as to saidaffected attribute and any of said plurality of master data attributesthat has central ownership; and, wherein: selectively permitting ordenying said persistent modification request as to said affectedattribute comprises generating a stewardship event.
 6. Thecomputer-implemented method of claim 5, wherein generating a stewardshipevent comprises at least one stewardship action selected from the groupconsisting of: (a) sending a task notification to a stewardship entity;and (b) reconciling said conflict according to one or more businessrules.
 7. The computer-implemented method of claim 1, wherein: saidpersistent modification request is part of a transaction on said masterdata management system; and, further comprising: responsive to allowingsaid persistent modification request for all of said one or moreaffected attributes, continuing with said transaction; and responsive todenying said persistent modification request for any of said one or moreaffected attributes, rolling back said transaction.
 8. A computerprogram product comprising one or more computer readable storage mediaand program instructions stored on said one or more computer readablestorage media, said program instructions comprising instructions to, ina master data management system: identify a profile, said profilecomprising a plurality of master data attributes; receive a persistentmodification request directed to said profile, said persistentmodification request affecting one or more affected attributes; said oneor more affected attributes being of said plurality of master dataattributes; for each affected attribute of said one or more affectedattributes, either: identify a preexisting master record for saidaffected attribute, said preexisting master record being associated withpreexisting ownership information for said affected attribute; ordetermine that no preexisting master record exists for said affectedattribute; for each affected attribute of said one or more affectedattributes: responsive to determining that no preexisting master recordexists for said affected attribute, add a new master data attribute andassociated new ownership information for said affected attribute to saidprofile, based on said persistent modification request; responsive toidentifying said preexisting master record for said affected attribute,selectively permit or deny said persistent modification request as tosaid affected attribute; and responsive to permitting said persistentmodification request as to said affected attribute, update saidpreexisting master record for said affected attribute, based on saidpersistent modification request.
 9. The computer program product ofclaim 8, wherein: said master data management system is accessible atleast through a physical application programming interface and a virtualapplication programming interface; and said persistent modificationrequest is received through said physical application programminginterface.
 10. The computer program product of claim 9, wherein: saidpreexisting ownership information identifies an ownership selected fromthe group consisting of: (a) virtual ownership; and (b) centralownership; and, wherein: said instructions to selectively permit or denysaid persistent modification request as to said affected attributecomprise instructions to deny said persistent modification request as tosaid affected attribute, if said preexisting ownership informationindicates virtual ownership of said affected attribute and saidpersistent modification request is received via said physicalapplication programming interface.
 11. The computer program product ofclaim 10, wherein said persistent modification requests is received viasaid physical application programming interface.
 12. The computerprogram product of claim 10, wherein said program instructions furthercomprise instructions to: for each affected attribute of said one ormore affected attributes, detect a conflict between said persistentmodification request as to said affected attribute and any of saidplurality of master data attributes that has central ownership; and,wherein: said instructions to selectively permit or deny said persistentmodification request as to said affected attribute comprise instructionsto generate a stewardship event.
 13. The computer program product ofclaim 12, wherein said instructions to generate a stewardship eventcomprise instructions to perform at least one stewardship actionselected from the group consisting of: (a) sending a task notificationto a stewardship entity; and (b) reconciling said conflict according toone or more business rules.
 14. The computer program product of claim 8,wherein: said persistent modification request is part of a transactionon said master data management system; and said program instructionsfurther comprise instructions to: responsive to allowing said persistentmodification request for all of said one or more affected attributes,continue with said transaction; and responsive to denying saidpersistent modification request for any of said one or more affectedattributes, roll back said transaction.
 15. A computer systemcomprising: one or more processors; one or more computer readablestorage media; computer program instructions; said computer programinstructions being stored on said one or more computer readable storagemedia; said computer program instructions comprising instructions to, ina master data management system: identify a profile, said profilecomprising a plurality of master data attributes; receive a persistentmodification request directed to said profile, said persistentmodification request affecting one or more affected attributes; said oneor more affected attributes being of said plurality of master dataattributes; for each affected attribute of said one or more affectedattributes, either: identify a preexisting master record for saidaffected attribute, said preexisting master record being associated withpreexisting ownership information for said affected attribute; ordetermine that no preexisting master record exists for said affectedattribute; for each affected attribute of said one or more affectedattributes: responsive to determining that no preexisting master recordexists for said affected attribute, add a new master data attribute andassociated new ownership information for said affected attribute to saidprofile, based on said persistent modification request; responsive toidentifying said preexisting master record for said affected attribute,selectively permit or deny said persistent modification request as tosaid affected attribute; and responsive to permitting said persistentmodification request as to said affected attribute, update saidpreexisting master record for said affected attribute, based on saidpersistent modification request.
 16. The computer system of claim 15,wherein: said master data management system is accessible at leastthrough a physical application programming interface and a virtualapplication programming interface; and said persistent modificationrequest is received through said physical application programminginterface.
 17. The computer system of claim 16, wherein: saidpreexisting ownership information identifies an ownership selected fromthe group consisting of: (a) virtual ownership; and (b) centralownership; and, wherein: said instructions to selectively permit or denysaid persistent modification request as to said affected attributecomprise instructions to deny said persistent modification request as tosaid affected attribute, if said preexisting ownership informationindicates virtual ownership of said affected attribute and saidpersistent modification request is received via said physicalapplication programming interface.
 18. The computer system of claim 17,wherein said persistent modification requests is received via saidphysical application programming interface.
 19. The computer system ofclaim 17, wherein said computer program instructions further compriseinstructions to: for each affected attribute of said one or moreaffected attributes, detect a conflict between said persistentmodification request as to said affected attribute and any of saidplurality of master data attributes that has central ownership; and,wherein: said instructions to selectively permit or deny said persistentmodification request as to said affected attribute comprise instructionsto generate a stewardship event.
 20. The computer system of claim 19,wherein said instructions to generate a stewardship event compriseinstructions to perform at least one stewardship action selected fromthe group consisting of: (a) sending a task notification to astewardship entity; and (b) reconciling said conflict according to oneor more business rules.